Cocowa Model: Watchdog Mechanism Used to Propagate Selfish Nodes in Cellular Networks of Moving Vehicles

Abstract

The cellular networks are used to move the rapid growth in the mobile data in the explosion on the cellular network. The offload cellular networks are dynamic in the swimming condition. The highly dynamic sector is improved by the WIFI networks the Access point is configured by the MAC and the IP address. The mobile Ad hoc network model is formatted on the selfish node behavior .The detecting selfish node is performed by the watch dog timers. The swimming performances are used to move the delay tolerant networks. The cocowa approach based on the diffusion on the selfish node propagated. The collaborative approach are reduces the time and increases the precision when detecting the selfish nodes.

Eliminating Selective Dropping Attack in Mobile Ad Hoc Network

“…Many security approaches [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] employ the watchdog approach to unmask malicious nodes. However, although the use of the watchdog approach allows to detect malicious nodes, it has several limitations [4] and All security approaches using this technique inherit these limitations.…”

“…Almost of existing reputation approaches [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] based on the watchdog approach cannot detect malicious nodes when they launch selective dropping attack, which is one of the important limitations of watchdog approach. These nodes drop data packet at low rate in order to:…”

“…Reputation-based approaches [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] have been proposed to deal with the malicious and selfish behaviors of nodes. They aim to punish nodes refusing to cooperate.…”

“…Although the reputation approaches [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] relying on the watchdog approach permit to punish malicious nodes that drop data packets, they are not able to thwart selective dropping attack [21]. Almost of these approaches are vulnerable to two mains security threats:…”

Eliminating Selective Dropping Attack in Mobile Ad Hoc Network

“…Many security approaches [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] employ the watchdog approach to unmask malicious nodes. However, although the use of the watchdog approach allows to detect malicious nodes, it has several limitations [4] and All security approaches using this technique inherit these limitations.…”